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Dimensioning system calibration systems and methods

  • US 9,007,368 B2
  • Filed: 05/07/2012
  • Issued: 04/14/2015
  • Est. Priority Date: 05/07/2012
  • Status: Active Grant
First Claim
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1. A dimensioning system device selectively couplable to an imaging system device that has at least one imaging system image sensor and at least one imaging system display coupled to present display images acquired by the at least one imaging system image sensor, the dimensioning system device comprising:

  • at least one dimensioning system sensor;

    at least one dimensioning system non-transitory processor-readable medium; and

    at least one dimensioning system processor communicatively coupled to the at least one dimensioning system non-transitory computer readable medium, where;

    in a calibration mode the dimensioning system device;

    captures a depth map;

    captures an intensity image;

    receives imaging system image data display image from the imaging system, the imaging system image data representative of an image captured via the at least one imaging sensor; and

    determines a number of extrinsic parameters that provide a correspondence between a three-dimensional point in each of the depth map and the intensity image as viewed by the dimensioning system sensor with a same three-dimensional point viewed by the at least one imaging system image sensor of the imaging system device, including;

    determines a number of points positioned on at least one feature in the depth map and the intensity image including;

    determines a minimum of at least eight points positioned on at least one feature in the depth map and the intensity image, the at least one feature including an item other than a calibration target; and

    determines an equal number of respective points similarly positioned on the at least one feature in the imaging system image data; and

    in a run-time mode the dimensioning system device;

    generates a packaging wireframe image to be presented by the at least one imaging system display of the imaging system positioned to encompass an object in a display of the image represented by the imaging system image data concurrently presented with the package wireframe image by the at least one imaging system display as correlated spatially therewith based at least in part on the determined extrinsic parameters.

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